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One-bath desizing and refining method of pure starch sizing cotton fabric

A cotton fabric and starch technology, which is applied in the biochemical treatment of enzymes/microorganisms, plant fibers, textiles and papermaking, etc., can solve the problems of high energy consumption, water consumption and waste water discharge, unsatisfactory cotton seed hull removal effect, and serious environmental pollution. and other problems, to achieve the effect of reducing COD value and wastewater volume, clear texture and good effect

Active Publication Date: 2016-03-02
JIANGNAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the shortcomings of the traditional alkaline desizing and refining process, such as long process flow, large energy consumption, water consumption and waste water discharge, and serious environmental pollution, in order to overcome the unsatisfactory removal effect of cotton seed hulls existing in the existing cotton fabric enzyme refining technology , the invention provides a method for one-bath desizing and scouring of pure starch sizing cotton fabrics, in which Trametes produces crude enzyme liquid (containing various enzyme components such as laccase, cellulase, hemicellulase, pectinase, etc.) Combined with amylase, enzymatic one-bath desizing and pre-scouring treatment of pure cotton fabrics containing starch pulp (without PVA), using amylase to decompose starch slurry, and crude enzyme solution produced by Trametes to decompose and remove pectin and cottonseed hulls and other non-associated impurities, so as to realize the exhaustion of starch size on the fabric, the improvement of fabric wettability and the smoothness of the fabric surface

Method used

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  • One-bath desizing and refining method of pure starch sizing cotton fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1: the preparation method of Trametes fermented enzyme liquid

[0047] Weigh 200g of peeled potatoes, cut into small pieces, add 1.0L of water and boil for 30min, filter the potato pieces with 4 layers of gauze, make up the filtrate to 1.0L, add 20.0g of glucose, add 0.8g of lignosulfonate, fully dissolve . After subpackaging, sterilize under high pressure at 121°C for 20 minutes, cool down, perform aseptic operation, insert the bacterial suspension of the Trametessp.LEF01 strain that has been cultured on the PDA slant medium for 5 to 6 days, and place it in a constant temperature shaking incubator at 28°C. Under the shaking culture for 6 days, the rotation speed is 150rpm. After the fermentation was over, the fermentation broth was centrifuged at 4000rpm for 30min, and the supernatant was taken to measure the enzyme activity. Live 16800U / L.

Embodiment 2

[0048] Example 2: One-bath desizing and scouring of pure starch sized cotton fabric

[0049] After singeing, carded cotton plain fabric (pure starch sizing) is subjected to one-bath desizing and scouring by the following steps:

[0050] (1) Compound the crude enzyme solution obtained by the method in Example 1 with α-amylase at a ratio of 2:1, the total enzyme solution dosage is 2 g / L, the penetrant is 1 g / L, the enzyme rolling temperature is 40°C, and the liquid rolling rate is 100%, the fabric is curled after enzyme rolling;

[0051] (2) The rolled fabric is stacked at 20°C for 24 hours, and the fabric roll needs to be rotated slowly during the stacking process;

[0052] (3) After the fabric is unrolled, wash in hot water at 90-95°C, wash in warm water at 60°C and wash in cold water.

Embodiment 3

[0053] Example 3: One-bath desizing and scouring of pure starch sized cotton fabric

[0054] Cotton fabrics are pure cotton gauze fabrics after singeing, and undergo one-bath desizing and scouring through the following steps:

[0055] (1) Compound the crude enzyme solution of CGMCCNo.10489 and α-amylase at a ratio of 9:1, the total enzyme solution dosage is 1g / L, the penetrant is 5g / L, the enzyme rolling temperature is 50°C, and the liquid rolling rate is 100%, The fabric is rolled after rolling;

[0056] (2) The rolled fabric is stacked at 35°C for 12 hours, and the fabric roll needs to be rotated slowly during the stacking process;

[0057] (3) After the fabric is unrolled, wash in hot water at 95°C, warm water at 60°C, and cold water.

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Abstract

The invention discloses a one-bath desizing and refining method of pure starch sizing cotton fabric, and belongs to the technical field of textile dyeing and finishing pretreatment. According to the method, crude enzymes with various enzyme components such as laccase, cellulase, hemicellulase and pectinase produced by trametes Trametes sp.LEF01 are compounded with amylase, enzymic method one-bath desizing and refining pretreatment is conducted on PVA-free pure cotton fabric with starch slurry, starch slurry material is degraded through amylase, pectin, cottonseed hulls and other non-associated impurities are degraded through crude enzymes produced by trametes, and the removal of starch slurry material on fabric, the improvement of fabric wettability and the smoothness of surface are achieved. By means of the method, the pretreatment effect of cotton fabric can be comprehensively improved, the defects that during traditional alkali method desizing and refining, energy consumption, water consumption and waste water discharge are high, and environment pollution is severe are overcome, and the method is a green and environment-friendly cotton fabric short-process cleaning and producing process.

Description

technical field [0001] The invention relates to a one-bath desizing and scouring method for pure starch sized cotton fabrics, belonging to the technical field of pre-treatment of textile dyeing and finishing. Background technique [0002] Pretreatment is the first process in the entire dyeing and finishing process of textiles. The purpose of the pre-treatment is to remove the natural impurities contained in the fibers, as well as the sizing and oil stains applied in the textile processing, so that the fibers can give full play to their excellent quality, and the fabric has whiteness, softness and good texture. Permeability to meet the requirements of wearing, and provide qualified semi-finished products for dyeing, printing and finishing. Pretreatment of cotton fabrics, including raw fabric preparation, singeing, desizing, scouring (scouring), bleaching, opening, rolling, drying and mercerizing processes to remove pectin, wax, cottonseed hulls from fibers and pulp and othe...

Claims

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Application Information

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IPC IPC(8): D06M16/00D06M101/06
CPCD06M16/003D06M2101/06
Inventor 王强范雪荣张颖王平袁久刚余圆圆崔莉
Owner JIANGNAN UNIV
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